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Onboarding Highlights Ship Review (#3380)
Task/Issue URL: https://app.asana.com/0/1206329551987282/1208291253556033/f **Description**: This PR includes changes and fixes that have been addressed during the Ship Review.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| // | ||
| // Debouncer.swift | ||
| // DuckDuckGo | ||
| // | ||
| // Copyright © 2024 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
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| import Foundation | ||
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| /// A class that provides a debouncing mechanism. | ||
| public final class Debouncer { | ||
| private let runLoop: RunLoop | ||
| private let mode: RunLoop.Mode | ||
| private var timer: Timer? | ||
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| /// Initializes a new instance of `Debouncer`. | ||
| /// | ||
| /// - Parameters: | ||
| /// - runLoop: The `RunLoop` on which the debounced actions will be scheduled. Defaults to the current run loop. | ||
| /// | ||
| /// - mode: The `RunLoop.Mode` in which the debounced actions will be scheduled. Defaults to `.default`. | ||
| /// | ||
| /// Use `RunLoop.main` for UI-related actions to ensure they run on the main thread. | ||
| public init(runLoop: RunLoop = .current, mode: RunLoop.Mode = .default) { | ||
| self.runLoop = runLoop | ||
| self.mode = mode | ||
| } | ||
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| /// Debounces the provided block of code, executing it after a specified time interval elapses. | ||
| /// - Parameters: | ||
| /// - dueTime: The time interval (in seconds) to wait before executing the block. | ||
| /// - block: The closure to execute after the due time has passed. | ||
| /// | ||
| /// If `dueTime` is less than or equal to zero, the block is executed immediately. | ||
| public func debounce(for dueTime: TimeInterval, block: @escaping () -> Void) { | ||
| timer?.invalidate() | ||
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| guard dueTime > 0 else { return block() } | ||
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| let timer = Timer(timeInterval: dueTime, repeats: false, block: { timer in | ||
| guard timer.isValid else { return } | ||
| block() | ||
| }) | ||
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| runLoop.add(timer, forMode: mode) | ||
| self.timer = timer | ||
| } | ||
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| /// Cancels any pending execution of the debounced block. | ||
| public func cancel() { | ||
| timer?.invalidate() | ||
| timer = nil | ||
| } | ||
| } |
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